Differences
This shows you the differences between two versions of the page.
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sasc:laboratoare:05 [2017/03/23 11:46] marios.choudary |
sasc:laboratoare:05 [2017/03/23 19:53] (current) marios.choudary |
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| http://cs.curs.pub.ro/2014/pluginfile.php/13095/mod_resource/content/2/sasc_curs4_5.pdf | http://cs.curs.pub.ro/2014/pluginfile.php/13095/mod_resource/content/2/sasc_curs4_5.pdf | ||
| - | ==== Exercise 1 ==== | + | ==== Exercise 1 (2p) ==== |
| Remember DESX defined as the operation DESX( (k1,k2,k3), m) = k1 ⊕ DES(k2, m ⊕ k3), | Remember DESX defined as the operation DESX( (k1,k2,k3), m) = k1 ⊕ DES(k2, m ⊕ k3), | ||
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| </note> | </note> | ||
| - | ==== Exercise 2 ==== | + | ==== Exercise 2 (3p) ==== |
| Show why the following schemes do not bring any real advantage compared to DES: | Show why the following schemes do not bring any real advantage compared to DES: | ||
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| </note> | </note> | ||
| - | ==== Exercise 3 ==== | + | ==== Exercise 3 (5p) ==== |
| The goal of this exercise is to implement the meet-in-the-middle attack on double DES. | The goal of this exercise is to implement the meet-in-the-middle attack on double DES. | ||
